<template>
  <div class="app-container">

    <!-- 搜索表单 -->
    <el-form :model="queryParams" ref="queryRef" :inline="true" v-show = "showSearch" label-width="68px">
      <el-form-item label="品牌名称" prop="name">
        <el-input
            v-model="queryParams.name"
            placeholder="请输入品牌名称"
            clearable
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="Search" @click="handleQuery">搜索</el-button>
        <el-button icon="Refresh" @click = "resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <!-- 功能按钮栏 -->
    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
            type="primary"
            plain
            icon="Plus"
            @click="handleAdd"
            v-hasPermi="['product:brand:add']"
        >新增
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
            type="success"
            plain
            icon="Edit"
            :diabled = "single"
            @click = "handleUpdate"
            v-hasPermi="['product:brand:edit']"
        >修改
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
            type="danger"
            plain
            icon="Delete"
            :disabled = "multiple"
            @click = "handleDelete"
            v-hasPermi="['product:brand:remove']"
        >删除
        </el-button>
      </el-col>
      <right-toolbar v-model:showSearch="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <!-- 数据展示表格 -->
    <el-table v-loading="loading" :data="brandList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center"/>
      <el-table-column label="品牌名称" prop="name" width="200"/>
      <el-table-column label="品牌图标" prop="logo" #default="scope">
        <img :src="scope.row.logo" width="50"/>
      </el-table-column>
      <el-table-column prop="createTime" label="创建时间"/>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template #default="scope">
          <el-button link type="primary" icon="Edit" @click="handleUpdate(scope.row)" v-hasPermi="['product:brand:edit']">修改</el-button>
          <el-button link type="primary" icon="Delete" @click="handleDelete(scope.row)" v-hasPermi="['product:brand:remove']">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <!-- 分页条组件 -->
    <pagination
        v-show="total > 0"
        :total="total"/>
<!--        v-model:page = "queryParams.pageNum"-->
<!--        v-model:limit="queryParams.pageSize"-->
<!--        @pagination = "getList"-->


    <!-- 新增或修改分类品牌对话框
     四个数据：title open form imgUpload
     -->
    <el-dialog :title="title" v-model="open" width="500px" append-to-body>
      <el-form ref="brandRef" :model="form" :rules = "rules" label-width="80px">
        <el-form-item label="品牌名称" prop="name">
          <el-input v-model="form.name" placeholder="请输入品牌名称"/>
        </el-form-item>
        <el-form-item label="品牌图标" prop="logo">
          <el-upload
              class="avatar-uploader"
              :action="imgUpload.url"
              :headers="imgUpload.headers"
              :show-file-list="false"
              :on-success="handleAvatarSuccess"
          >
            <img v-if="form.logo" :src="form.logo" class="avatar"/>
            <el-icon v-else class="avatar-uploader-icon">
              <Plus/>
            </el-icon>
          </el-upload>
        </el-form-item>
      </el-form>
      <template #footer>
        <div class="dialog-footer">
          <el-button type="primary" @click="submitForm">确 定</el-button>
          <el-button @click="cancel">取 消</el-button>
        </div>
      </template>
    </el-dialog>

  </div>
</template>

<script setup name="Brand">
import {onMounted, toRefs} from "vue";
// 引入api接口
import {listBrand, addBrand, getBrand, updateBrand, delBrand} from '@/api/product/brand'
import {getToken} from "@/utils/auth.js"
import {ElMessage, ElMessageBox} from "element-plus";
//定义分页列表数据模型
const brandList = ref([]);
//定义列表总记录数模型
const total = ref(0);


// reactive 中可以定义的是一个复杂的 JS 对象
const data = reactive({
  queryParams: {
    name: ''
  },
  form: {},
  imgUpload: {
    // 设置上传的请求头部
    headers: {
      Authorization: "Bearer " + getToken()
    },
    // 图片上传的方法地址:
    url: import.meta.env.VITE_APP_BASE_API + "/file/upload"
  },

  rules:{
    name:[{required:true,message:"品牌名称不能为空",trigger:"blur"}],
    logo:[{required:true,message:"品牌Logo不能为空",trigger:"blur"}]
  }
});
// toRefs 是一个Vue3中提供的API，可将一个响应式对象转换为普通对象，其中属性变成了对原始对象属性的引用
const {queryParams, form, imgUpload,rules} = toRefs(data);
const open = ref(false);
const title = ref("");
//加载数据时显示的动效控制模型
const loading = ref(true);

//定义批量操作数据模型
//定义批量操作id列表模型(将新引入的 对象id 定义为空的数组)
const id = ref([]);
//定义单选控制模型
const single = ref(true);
//定义多选控制模型
const multiple = ref(true);

// 获取当前实例的代理对象
const {proxy} = getCurrentInstance();

//定义隐藏搜索控制模型
const showSearch = ref(true);

// ============================ function ===============================

//多选框选中数据
function handleSelectionChange(selection){
  ids.value = selection.map(item=>item.id);
  single.value = (selection.length != 1);
  multiple.value = !selection.length;
}
// 删除按钮
function handleDelete(row){
  const _ids = row.id || ids.value;
  proxy.$modal.confirm('是否确认删除分类品牌编号为"'+ _ids +'"的数据项？')
  .then(function(){
    return delBrand(_ids);
  }).then(()=>{
    getList();
    // 通过 $modal 这个Vue.js 中的内置对象，调用msgSuccess方法
   proxy.$modal.msgSuccess("删除成功")
  }).catch(()=>{ })
}


//提交按钮
function submitForm(){
  proxy.$refs["brandRef"].validate(valid=>{
    if(valid){
      if(form.value.id != null){
        updateBrand(form.value).then(response=>{
          // ElMessage.success("修改成功");
          proxy.$modal.msgSuccess("新增成功");
          open.value = false;
          getList();
        });
      }else{
        addBrand(form.value).then(response=>{
          //ElMessage.success("新增成功")
          proxy.$modal.msgSuccess("新增成功");
          open.value = false;
          getList();
        });
      }
    }
  });
}
//修改按钮操作
function handleUpdate(row) {
  reset();
  const _id = row.id||ids.value;
  getBrand(_id).then(response => {
    form.value = response.data;
    open.value = true;
    title.value = "修改品牌"
  })
}

//取消按钮
function cancel() {
  open.value = false;
  reset();
}

function reset() {
  form.value = {
    id: null,
    name: null,
    logo: null
  };
  proxy.resetForm("brandRef");
}

function handleAdd() {
  reset();
  open.value = true;
  title.value = "新增品牌";
}

function handleAvatarSuccess(response, uploadFile) {
  //alert("上传成功")
  console.log(response)
  console.log(uploadFile)
  form.value.logo = response.data.url
}


function resetQuery() {
  proxy.resetForm("queryRef");
  handleQuery();
}

function handleQuery() {
  getList();
}


function getList() {
  loading.value = true;
  //alert("直接请求后端数据")
  listBrand(queryParams.value).then((response) => {
    console.log()
    brandList.value = response.rows;
    total.value = response.total;
    loading.value = false;
  });
}

onMounted(() => {
  getList()
})
</script>


<style scoped>
.avatar-uploader .avatar {
  width: 178px;
  height: 178px;
  display: block;
}
</style>

<style>
.avatar-uploader .el-upload {
  border: 1px dashed var(--el-border-color);
  border-radius: 6px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: var(--el-transition-duration-fast);
}

.avatar-uploader .el-upload:hover {
  border-color: var(--el-color-primary);
}

.el-icon.avatar-uploader-icon {
  font-size: 28px;
  color: #8c939d;
  width: 178px;
  height: 178px;
  text-align: center;
}
</style>